Electrical power management system

Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific voltage responsive fault sensor

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Details

361 84, 361 91, 361 92, H02H 320

Patent

active

057371687

ABSTRACT:
A control system used to monitor an AC power source connected to AC powered user equipment. The control system is designed to monitor the output voltages of the AC power source to ensure that they are maintained within a predetermined operating window consisting of a high voltage limit and a low voltage limit. If the voltages stray outside the operating window the control system activates a normally closed DC relay to disconnect the AC power source from the AC powered user equipment. The disconnection is immediate for voltages that stray above the high voltage limit and only occurs after a short delay for voltages below the low voltage limit. The control system also monitors the AC power source connection to the AC powered user equipment to ensure that no polarization errors exist in the connection. A polarization error exists when the output conductors of the AC power source are connected to the wrong input conductors of the AC powered user equipment or when one or more conductors of the AC power source are not connected at all. The control system immediately disconnects the AC power source when a polarization error is detected. The control system is able to reconnect power to the AC powered user equipment after a minimum delay time has elapsed when it determines that the voltage is within the operating window again or the polarization error has been corrected. The control system is powered by an independent DC power supply separate from the AC source being monitored.

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Brochure entitled, The Lectric-Shield LSRV30/130 Surge Protector, Outdoor Adventures.
Brochure entitled, 115 Volt, 30 Amp Voltage Monitor Voltage Controlled Circuit Breaker for Protecting Appliances in your Recreational Vehicles, Shore Power, Inc.
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Brochure entitled, Power Line Monitor PLM-2, RV Electronics.

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